Genasun GV-4 10-50W 4A Solar Charge Controller with MPPT

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. The Genasun GV-4 MPPT solar charge controller adapts to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

Plug and Play, with Advanced Error Protections
We all make mistakes. People plug panels in backwards. Wires get touched. Rodents chew through cables and cause short circuits. Stuff happens. But don't worry, we've got you covered. Advanced built-in electronic protections will instantly cut power to a short circuit. The controller will automatically test to see when the short is removed. Once it's clear, normal operation will resume. There's nothing to reset. No fuses to replace. The GV-4 just works.

Made in the USA

Surviving the Storm with Low Power Burn
Every controller uses power. While a typical PWM controller burns 9mA, the Genasun GV-4 burns a scant 0.125mA. That slow burn is perfect for waiting out a snow-covered panel, or a few bad weeks of clouds.

Partial Shade – In-City Applications
Genasun controllers shine in partial shade. The 50% power increase from Genasun’s advanced MPPT is often enough to prevent system downtime from partial shade. From street signs and tree branches, to coffee cups and stickers placed on panels by pedestrians, Genasun MPPT keeps partially shaded solar panels generating more power than any other controller.

Steady Power Source
Life is unpredictable. PWM controllers amplify that unpredictability. A small amount of shade can drop PWM power output to 2/3's of what a Genasun MPPT controller can draw from the same panel. By constantly adapting to changing light conditions, Genasun’s advanced MPPT controllers provide a steadier source of power, keeping your system running in uncertain weather.

Radio Silence
Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers. During third-party testing for FCC compliance, the test engineer asked us, “Is it on?”. Mission accomplished.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Genasun GV-5 65W 5A Solar Charge Controller with MPPT

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. The Genasun 5A MPPT solar charge controller adapts to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

Get The Ceramic Edge. Electrolytic-Free with 10-Year Warranty
Genasun’s Ceramic controllers set a new benchmark for reliability. Traditional controllers have components filled with liquid electrolytes that boil off over time, causing system failure. Genasun Solid Ceramic controllers have no liquid, so they don’t wear out in the heat. Backed by an industry-leading 10 year warranty, these controllers take reliability to a new level.

Surviving the Storm with Low Power Burn
Every controller uses power. While a typical PWM controller burns 9mA, the Genasun GV-5 burns a scant 0.15mA. That slow burn is perfect for waiting out a snow-covered panel, or a few bad weeks of clouds.

Partial Shade – In-City Applications.
Genasun controllers shine in partial shade. The 50% power increase from Genasun’s advanced MPPT is often enough to prevent system downtime from partial shade. From street signs and tree branches, to coffee cups and stickers placed on panels by pedestrians, Genasun MPPT keeps partially shaded solar panels generating more power than any other controller.

Complete Power Management
The GV-5-L does it all. Plug in the solar panel, connect the battery, and connect the load. The GV-5 will automatically maximize the solar power collected. The advanced battery charging algorithm will maximize the lifetime and capacity of your battery system. The load output will provide smooth, filtered power without the AC chatter found in lesser controllers. This little black box does it all, efficiently and consistently.

Steady Power Source
Life is unpredictable. PWM controllers amplify that unpredictability. A small amount of shade can drop PWM power output to 2/3's of what a Genasun MPPT controller can draw from the same panel. By constantly adapting to changing light conditions, Genasun’s advanced MPPT controllers provide a steadier source of power, keeping your system running in uncertain weather.

Radio Silence.
Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers. During third-party testing for FCC compliance, the test engineer asked us, “Is it on?”. Mission accomplished.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Plug and Play, with Advanced Error Protections
We all make mistakes. People plug panels in backwards. Rodents chew through cables and cause short circuits. Stuff happens. But don't worry, we've got you covered. Advanced built-in electronic protections will instantly cut power to a short circuit. The controller will automatically test to see when the short is removed. Once it's clear, normal operation will resume.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

Get the Ceramic Edge. Electrolytic-Free with 10 Year Warranty
Genasun’s Ceramic controllers set a new benchmark for reliability. Traditional controllers have components filled with fluid electrolytes that boil off over time, causing system failure. Genasun Solid Ceramic controllers have no fluid. They don’t wear out in the heat. Backed by an industry leading 10 year warranty, these controllers take reliability to a new level.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. Genasun controllers adapt to changing light conditions 20 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Advanced Lithium Charging Algorithms
Our Lithium charging algorithms draw from nine years of experience building Lithium battery packs for harsh environments. We've worked with every chemistry, and have tailored charge profiles to help you get more capacity and cycle life from your battery pack.

Custom Voltages Available
Genasun stocks the GV-5 in a variety of charge profiles for the most common Lithium chemistries and cell configurations. Custom voltages can be programmed at the factory to match the Float Voltage (CV voltage) of your battery. Please select the Custom Voltage option from the drop down, and email support@genasun.com to specify the voltage.

Made in the USA

Surviving the Storm with Low Power Burn
Every controller uses power. While a typical PWM controller burns 9mA, the Genasun GV-5 burns a scant 0.15mA. That slow burn is perfect for waiting out a snow-covered panel, or a few bad weeks of clouds.

Partial Shade – In-City Applications.
Genasun controllers shine in partial shade. The 50% power increase from Genasun’s advanced MPPT is often enough to prevent system downtime from partial shade. From street signs and tree branches, to coffee cups and stickers placed on panels by pedestrians, Genasun MPPT keeps partially shaded solar panels generating more power than any other controller.

Complete Power Management.
The GV-5-L does it all. Plug in the solar panel, connect the battery, and connect the load. The GV-5 will automatically maximize the solar power collected. The advanced battery charging algorithm will maximize the lifetime and capacity of your battery system. The load output will provide smooth, filtered power without the AC chatter found in lesser controllers. This little black box does it all, efficiently and consistently.

Steady Power Source
Life is unpredictable. PWM controllers amplify that unpredictability. A small amount of shade can drop PWM power output to 2/3's of what a Genasun MPPT controller can draw from the same panel. By constantly adapting to changing light conditions, Genasun’s advanced MPPT controllers provide a steadier source of power, keeping your system running in uncertain weather.

Radio Silence.
Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers. During third-party testing for FCC compliance, the test engineer asked us, “Is it on?” Mission accomplished.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Plug and Play, with Advanced Error Protections
We all make mistakes. People plug panels in backwards. Rodents chew through cables and cause short circuits. Stuff happens. But don't worry, we've got you covered. Advanced built-in electronic protections will instantly cut power to a short circuit. The controller will automatically test to see when the short is removed. Once it's clear, normal operation will resume.

Genasun GV-10 20-140W 10A Solar Charge Controller with MPPT

A Perfect Match for your 140W Panel
The GV-10 was designed to maximize the usable energy from a 140W panel. With Continuous Maximum Power Point Tracking, and night consumption of only 0.9mA, the GV-10 delivers results. In fact, the GV-10 is so effective at increasing panel output, it lowers your system cost ($/W) compared to a PWM controller and larger panel.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. Genasun controllers adapt to changing light conditions 20 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Surviving the Storm with Low Power Burn
Every controller uses power, but while a typical MPPT controller burns 27mA, the Genasun GV-10 burns a scant 0.9mA. This difference in consumption effectively allows the GV-10 to put an extra half an amp-hour into your battery every day, resulting in a critical benefit while waiting out a snow-covered panel or a few bad weeks of clouds.

Radio Silence.
Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

The Perfect Match: The GV-10 and a 140W Solar Panel
Genasun’s GV-10 Continuous MPPT controller is so effective at increasing power output that it actually reduces the system’s cost per Watt ($/W) when paired with a panel such as the Kyocera KD140SX or KD140GX, for example. To compare a Genasun MPPT controller to a PWM controller, you can imagine increasing the size of the panel to make up for the power wasted by a PWM controller. With this approach, the dollar value is calculated by multiplying the power gained by Genasun’s MPPT controllers by the cost per Watt of the solar panel.

The MPPT benefit is:
10% additional power in the summer. (Hot panels have a Vmp closer to battery Voltage.)
30% additional power in the winter (Cold panels have a higher Vmp.)
50% in partial shading (Partial shade causes a dramatic increase in Vmp. We have consistently seen 50-60% increase in energy harvest from partially shaded panels.)

Steady Power Source.
Life is unpredictable. PWM controllers amplify that unpredictability. A small amount of shade can drop PWM power output to 2/3's of what a Genasun MPPT controller can draw from the same panel. By constantly adapting to changing light conditions, Genasun’s advanced MPPT controllers provide a steadier source of power, keeping your system running in uncertain weather.

A Perfect Match for your 140W Panel
The GV-10 was designed to maximize the usable energy from a 140W panel. With Continuous Maximum Power Point Tracking, and night consumption of only 0.9mA, the GV-10 delivers results. In fact, the GV-10 is so effective at increasing panel output, it lowers your system cost ($/W) compared to a PWM controller and larger panel.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, but traditional controllers are constantly off target during changing cloud conditions – exactly when power is scarce and needs the most. Genasun controllers adapt to changing light conditions 20 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Advanced Lithium Charging Algorithms
Our Lithium charging algorithms draw from nine years of experience building Lithium battery packs for harsh environments. We've worked with every chemistry, and have tailored charge profiles to help you get more capacity and cycle life from your battery pack.

Custom Voltages Available
Genasun stocks the GV-10 in a variety of charge profiles for the most common Lithium chemistries and cell configurations. Custom voltages can be programmed at the factory to match the Float Voltage (CV voltage) of your battery. Please select the Custom Voltage option from the drop down, and email support@genasun.com to specify the voltage.

Made in the USA

Surviving the Storm with Low Power Burn
Every controller uses power, but while a typical MPPT controller burns 27mA, the Genasun GV-10 burns a scant 0.9mA. This difference in consumption effectively allows the GV-10 to put an extra half an amp-hour into your battery every day, resulting in a critical benefit while waiting out a snow-covered panel or a few bad weeks of clouds.

Radio Silence.
Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

The Perfect Match: The GV-10 and a 140W Solar Panel
Genasun’s GV-10 Continuous MPPT controller is so effective at increasing power output that it actually reduces the system’s cost per Watt ($/W) when paired with a panel such as the Kyocera KD140SX or KD140GX, for example. To compare a Genasun MPPT controller to a PWM controller, you can imagine increasing the size of the panel to make up for the power wasted by a PWM controller. With this approach, the dollar value is calculated by multiplying the power gained by Genasun’s MPPT controllers by the cost per Watt of the solar panel.

The MPPT benefit is:
10% additional power in the summer. (Hot panels have a Vmp closer to battery Voltage.)
30% additional power in the winter (Cold panels have a higher Vmp.)
50% in partial shading (Partial shade causes a dramatic increase in Vmp. We have consistently seen 50-60% increase in energy harvest from partially shaded panels.)

Steady Power Source.
Life is unpredictable. PWM controllers amplify that unpredictability. A small amount of shade can drop PWM power output to 2/3's of what a Genasun MPPT controller can draw from the same panel. By constantly adapting to changing light conditions, Genasun’s advanced MPPT controllers provide a steadier source of power, keeping your system running in uncertain weather.

Genasun GV-Boost 105-350W Solar Boost Charge Controller with MPPT

Want to see a 27V grid-tie panel charge a 48V battery pack? Get a GVB.
Most solar charge controllers move power from a higher voltage panel to a lower voltage battery bank. The GVB-series controllers, in contrast, pump electricity up hill. These controllers will take a standard 12V panel and boost the voltage to charge a 24V, 36V or 48V battery pack. In fact, the GVB's will work with almost any panel that's below your battery voltage. This makes finding a good panel easy: just make sure to stay below 8A panel current and 63 Volts (open circuit). Larger panels are cheaper per Watt than smaller panels, so using one large panel and a boost controller results in a significantly lower system cost than smaller panels in series with a conventional charge controller.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, with a stationary panel. But moving vehicles and changing cloud cover require a faster, more advanced controller. Genasun controllers adapt to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

LED Indicator
The built-in LED will quickly tell you that you've installed the controller correctly. Simple to read, it will also let you know when the battery is charging from solar power, and when the battery has reached full charge.

Marine Grade: Reliable Power After Years at Sea
Genasun Boost controllers provide reliable power in the harshest environments on earth. GVB's have been powering boats on round-the-world sailing races for years.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Want to see a 27V grid-tie panel charge a 48V battery pack? Get a GVB.
Most solar charge controllers move power from a higher voltage panel to a lower voltage battery bank. The GVB-series controllers, in contrast, pump electricity up hill. These controllers will take a standard 12V panel and boost the voltage to charge a 24V, 36V or 48V battery pack. In fact, the GVB's will work with almost any panel that's below your battery voltage. This makes finding a good panel easy: just make sure to stay below 8A panel current and 63 Volts (open circuit). Larger panels are cheaper per Watt than smaller panels, so using one large panel and a boost controller results in a significantly lower system cost than smaller panels in series with a conventional charge controller.

Mission-Critical Reliability
Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, with a stationary panel. But moving vehicles and changing cloud cover require a faster, more advanced controller. Genasun controllers adapt to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Advanced Lithium Charging Algorithms
Drawing on more than nine years of advanced lithium battery development, Genasun offers a complete line of lithium solar charge controllers. These units efficiently charge our high-performance lithium battery packs, and many other commercially available lithium battery systems.

Custom Voltages Available
Genasun stocks the GV-Boost in 24V and 48V nominal charge profile for the LiFePO4 chemistry used in our Marine Lithium batteries. Custom voltages can be programmed at the factory to match the float Voltage (CV voltage) of your battery chemistry. Please select the Custom Voltage option from the drop down, and email support@genasun.com to specify the voltage.

Made in the USA

LED Display
The built-in LED will quickly tell you that you've installed the controller correctly. Simple to read, it will also let you know when the battery is charging from solar power, and when the battery has reached full charge.

Marine Grade: Reliable Power After Years at Sea
Genasun Boost controllers provide reliable power in the harshest environments on earth. GVB's have been powering boats on round-the-world sailing races for years.

No Fans. No Relays.
Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Running circles around the Competition
You have a limited amount of space on the roof of your golf cart. Advanced electronics in the GVB controller extract more usable power from your panel than any other controller. These solar charge controllers are fully waterproof, which makes them ideal for golf carts and other applications where the controller will be exposed to moisture.

Boosting Panel Voltage Saves Money
Most solar charge controllers move power from a higher voltage panel to a lower voltage battery bank. The GVB-series controllers, in contrast, pump electricity up hill. These controllers will take a standard 12V panel and boost the voltage to charge a 24V, 36V or 48V battery pack. In fact, the GVB's will work with almost any panel that's below your battery voltage. This makes finding a good panel easy: just make sure to stay below 8A panel current and 63 Volts (open circuit). Larger panels are cheaper per Watt than smaller panels, so using one large panel and a boost controller results in a significantly lower system cost than smaller panels in series with a conventional charge controller.

Unmatched Reliability
Genasun controllers are deployed to the most remote locations on earth. They continue delivering power after years at sea, through harsh Antarctic winters, in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Each controller we ship has passed a thorough electrical test to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, with a stationary panel. But moving vehicles, and changing cloud cover requires a faster, more advanced controller. Genasun controllers adapt to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

LED Display
The built-in LED will quickly tell you that you've installed the controller correctly. Simple to read, it will also let you know when the battery is charging from solar power, and when the battery has reached full charge.

Built-in Fuse
The GVB controller comes with a fuse built into the power line. This will keep your cart operating safely, reduce the chance of an incorrect installation, and allow end-users to make a quick fuse replacement if needed.

Waterproof: Go ahead, hose it off.
The advanced electronics inside your controller are encased in a proprietary potting compound. After extensive testing with a variety of formulations, we developed a perfect potting compound for our GVB controllers. This extra level of protection ensures trouble-free operation in real-world golf-cart and other vehicular applications.

By Popular request: What the heck is "Passive" or "Nominal" MPPT?
We were confused too. There are a number of golf-cart boost controllers that are advertised as MPPT controllers . . . until you read the fine print. Some clever marketers or lazy engineers came up with the idea that you can "passively" track the Maximum Power Point by operating at a fixed voltage. This is a joke. Tracking is the essential part of Maximum Power Point Tracking. Why? The Maximum Power Point changes. Tracking is the way you adapt to that change, and collect more power. "Passive" turns out the mean that the controller manufacturer took a guess and picked a voltage that will provide the maximum power for one specific panel, at one specific angle, in one specific lighting condition, at one latitude, at one specific time of the year. With this type of controller, you'll be lucky to get the the maximum potential power a few times a year. The rest of the time, you'll be loosing a lot of the panel power you paid for. In our own tests in with a competitor's buck controller advertising "Nominal MPPT", we found that the performance was often significantly worse than even a PWM controller.

The GV-Boost Waterproof solar charge controllers carry a 5-year warranty on materials and workmanship. Genasun’s warranty does not cover damage due to abuse or operation beyond the rated specifications.

Leading the Lithium Charge

Lithium Iron Phosphate is 70% lighter than lead, 20% more efficient, and lasts up to six times as long. Drawing on more than nine years of lithium experience, Genasun’s third-generation Lithium Iron Phosphate battery packs set the benchmark for weight, power, safety, and efficiency. It’s no wonder they’re the top choice of elite racing teams the world over.

Lighter than Lead, Longer Life

Lithium is 50% lighter than lead acid by Amp-hour rating, and 70% lighter by usable Ah capacity. The difference comes from lithium's ability to discharge to 80% depth for 2,000 cycles, whereas lead can typically discharge to 50% depth for 500 cycles.

Enjoy the Silence with Faster, Less Frequent Charging

Quick charging has arrived. Each GLi-12-360 can sustain 360A charge and discharge rates without breaking a sweat. Since Genasun lithium has no float or absorption stage, you can charge the battery bank full speed right to the end. This reduces genset run time, increases fuel efficiency (up to 96% in real-world testing), and reduces carbon buildup in diesels by avoiding light loading. More importantly, you get to turn the generator off sooner, and keep it off longer. Leave the noise in the city.

Designed to Win, Engineered to Last

Engineering the world's most efficient Lithium Iron Phosphate battery system is a good start. Using advanced computer modeling to construct the highest energy-to-weight ratio battery is a nice bonus. But it's the six years of marine lithium experience and flawless performance in the world's most extreme applications that set Genasun batteries apart from the pack of followers. This legendary reliability drove team Telefonica to select Genasun batteries for their entrance to the round-the-world Volvo ocean race. When facing conditions like this, the last thing you want to worry about is your batteries.

Refined by Experience

Genasun Lithium Ion batteries have been sailing the oceans since 2006. They've stood the test of time, providing power through snow storms, hail storms, rough seas, in all climates, through adverse racing conditions. Every year, we make them better. With the longest marine lithium experience, here's what we've learned:

Burn-in Testing for Every Pack

Every Genasun battery is cycle tested on our custom-built battery dynamometer. We run the batteries hard, cycling through charge and discharge while monitoring the characteristics of each cell. Our proprietary predictive models identify trouble cells that are likely to fail years later. These under-performers are weeded out. When a pack has proven its reliability, it's ready to ship. Our testing ensures that your battery pack will provide years of trouble-free service in the most rigorous applications.

Care for Each Cell: The Battery Management System

Genasun's built-in Battery Management System (BMS) monitors each cell, ensuring pack balance and health. This care maximizes both the capacity and the lifetime.

Dual Bank Redundancy: Two is Better than One

A single bank of Genasun batteries has more safety features than any other marine battery system. The only way to make that better is to design it like an airplane, and build in redundancy. Like a jet, Genasun battery systems come with dual power banks. If anything goes wrong, the system will instantly isolate the troubled bank, and provided uninterrupted power from the remaining bank. How useful is it? We had a customer punch a hole in his 55' catamaran, waterlogging half of his electronics. The Genasun system automatically isolated that bank, and continued to power his boat off the remaining bank until he made port in South Africa. With a single bank, he would have been dead in the water. Disaster averted.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

The Bottom Line

There are cheaper ways to make a lithium battery pack. You don't need all the safety features and redundancy designed into a Genasun pack . . . until you do. And when you get safely back to land, we'll get our favorite phone call. It usually starts with, "Thank you" and ends with, "you might have saved my life."

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

13.3V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

5.3kWh

Nominal Capacity (not affected by charge/discharge rate)

360Ah

Max Charge/Discharge Rate

360A

Recommended Charge Voltage

14.2V

Max Outer Dimensions

622 x 211 x 318mm

Weight

51.5kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in the 90 foot Gun Boat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Leading the Lithium Charge

Lithium Iron Phosphate is 70% lighter than lead, 20% more efficient, and lasts up to six times as long. Drawing on more than nine years of lithium experience, Genasun’s third-generation Lithium Iron Phosphate battery packs set the benchmark for weight, power, safety, and efficiency. It’s no wonder they’re the top choice of elite racing teams the world over.

Lighter than Lead, Longer Life

Lithium is 50% lighter than lead acid by Amp-hour rating, and 70% lighter by usable Ah capacity. The difference comes from lithium's ability to discharge to 80% depth for 2,000 cycles, whereas lead can typically discharge to 50% depth for 500 cycles.

Enjoy the Silence with Faster, Less Frequent Charging

Quick charging has arrived. Each GLi-24-180 can sustain 180A charge and discharge rates without breaking a sweat. Since Genasun lithium has no float or absorption stage, you can charge the battery bank full speed right to the end. This reduces genset run time, increases fuel efficiency (up to 96% in real-world testing), and reduces carbon buildup in diesels by avoiding light loading. More importantly, you get to turn the generator off sooner, and keep it off longer. Leave the noise in the city.

Designed to Win, Engineered to Last

Engineering the world's most efficient Lithium Iron Phosphate battery system is a good start. Using advanced computer modeling to construct the highest energy-to-weight ratio battery is a nice bonus. But it's the six years of marine lithium experience and flawless performance in the world's most extreme applications that set Genasun batteries apart from the pack of followers. This legendary reliability drove team Telefonica to select Genasun batteries for their entrance to the round-the-world Volvo ocean race. When facing conditions like this, the last thing you want to worry about is your batteries.

Refined by Experience

Genasun Lithium Ion batteries have been sailing the oceans since 2006. They've stood the test of time, providing power through snow storms, hail storms, rough seas, in all climates, through adverse racing conditions. Every year, we make them better. With the longest marine lithium experience, here's what we've learned:

Burn-in Testing for Every Pack

Every Genasun battery is cycle tested on our custom-built battery dynamometer. We run the batteries hard, cycling through charge and discharge while monitoring the characteristics of each cell. Our proprietary predictive models identify trouble cells that are likely to fail years later. These under-performers are weeded out. When a pack has proven its reliability, it's ready to ship. Our testing ensures that your battery pack will provide years of trouble-free service in the most rigorous applications.

Care for Each Cell: The Battery Management System

Genasun's built-in Battery Management System (BMS) monitors each cell, ensuring pack balance and health. This care maximizes both the capacity and the lifetime.

Dual Bank Redundancy: Two is Better than One

A single bank of Genasun batteries has more safety features than any other marine battery system. The only way to make that better is to design it like an airplane, and build in redundancy. Like a jet, Genasun battery systems come with dual power banks. If anything goes wrong, the system will instantly isolate the troubled bank, and provided uninterrupted power from the remaining bank. How useful is it? We had a customer punch a hole in his 55' catamaran, waterlogging half of his electronics. The Genasun system automatically isolated that bank, and continued to power his boat off the remaining bank until he made port in South Africa. With a single bank, he would have been dead in the water. Disaster averted.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

The Bottom Line

There are cheaper ways to make a lithium battery pack. You don't need all the safety features and redundancy designed into a Genasun pack . . . until you do. And when you get safely back to land, we'll get our favorite phone call. It usually starts with, "Thank you" and ends with, "you might have saved my life."

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

26.6V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

5.3kWh

Nominal Capacity (not affected by charge/discharge rate)

180Ah

Max Charge/Discharge Rate

180A

Recommended Charge Voltage

28.4V

Max Outer Dimensions

622 x 211 x 318mm

Weight

51.5kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Leading the Lithium Charge

Lithium Iron Phosphate is 70% lighter than lead, 20% more efficient, and lasts up to six times as long. Drawing on more than nine years of lithium experience, Genasun’s third-generation Lithium Iron Phosphate battery packs set the benchmark for weight, power, safety, and efficiency. It’s no wonder they’re the top choice of elite racing teams the world over.

Lighter than Lead, Longer Life

Lithium is 50% lighter than lead acid by Amp-hour rating, and 70% lighter by usable Ah capacity. The difference comes from lithium's ability to discharge to 80% depth for 2,000 cycles, whereas lead can typically discharge to 50% depth for 500 cycles.

Enjoy the Silence with Faster, Less Frequent Charging

Quick charging has arrived. Each GLi-12-100 can sustain 100A charge and discharge rates without breaking a sweat. Since Genasun lithium has no float or absorption stage, you can charge the battery bank full speed right to the end. This reduces genset run time, increases fuel efficiency (up to 96% in real-world testing), and reduces carbon buildup in diesels by avoiding light loading. More importantly, you get to turn the generator off sooner, and keep it off longer. Leave the noise in the city.

Designed to Win, Engineered to Last.

Engineering the world's most efficient Lithium Iron Phosphate battery system is a good start. Using advanced computer modeling to construct the highest energy-to-weight ratio battery is a nice bonus. But it's the six years of marine lithium experience and flawless performance in the world's most extreme applications that set Genasun batteries apart from the pack of followers. This legendary reliability drove team Telefonica to select Genasun batteries for their entrance to the round-the-world Volvo ocean race. When facing conditions like this, the last thing you want to worry about is your batteries.

Refined by Experience

Genasun Lithium Ion batteries have been sailing the oceans since 2006. They've stood the test of time, providing power through snow storms, hail storms, rough seas, in all climates, through adverse racing conditions. Every year, we make them better. With the longest marine lithium experience, here's what we've learned:

Burn-in Testing for Every Pack

Every Genasun battery is cycle tested on our custom-built battery dynamometer. We run the batteries hard, cycling through charge and discharge while monitoring the characteristics of each cell. Our proprietary predictive models identify trouble cells that are likely to fail years later. These under-performers are weeded out. When a pack has proven its reliability, it's ready to ship. Our testing ensures that your battery pack will provide years of trouble-free service in the most rigorous applications.

Care for Each Cell: The Battery Management System

Genasun's built-in Battery Management System (BMS) monitors each cell, ensuring pack balance and health. This care maximizes both the capacity and the lifetime.

Dual Bank Redundancy: Two is Better than One

A single bank of Genasun batteries has more safety features than any other marine battery system. The only way to make that better is to design it like an airplane, and build in redundancy. Like a jet, Genasun battery systems come with dual power banks. If anything goes wrong, the system will instantly isolate the troubled bank, and provided uninterrupted power from the remaining bank. How useful is it? We had a customer punch a hole in his 55' catamaran, waterlogging half of his electronics. The Genasun system automatically isolated that bank, and continued to power his boat off the remaining bank until he made port in South Africa. With a single bank, he would have been dead in the water. Disaster averted.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

The Bottom Line

There are cheaper ways to make a lithium battery pack. You don't need all the safety features and redundancy designed into a Genasun pack . . . until you do. And when you get safely back to land, we'll get our favorite phone call. It usually starts with, "Thank you" and ends with, "you might have saved my life."

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

13.3V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

1.4kWh

Nominal Capacity (not affected by charge/discharge rate)

100Ah

Max Charge/Discharge Rate

100A

Recommended Charge Voltage

14.2V

Max Outer Dimensions

319 x 175 x 266mm

Weight

14kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Leading the Lithium Charge

Lithium Iron Phosphate is 70% lighter than lead, 20% more efficient, and lasts up to six times as long. Drawing on more than nine years of lithium experience, Genasun’s third-generation Lithium Iron Phosphate battery packs set the benchmark for weight, power, safety, and efficiency. It’s no wonder they’re the top choice of elite racing teams the world over.

Lighter than Lead, Longer Life

Lithium is 50% lighter than lead acid by Amp-hour rating, and 70% lighter by usable Ah capacity. The difference comes from lithium's ability to discharge to 80% depth for 2,000 cycles, whereas lead can typically discharge to 50% depth for 500 cycles.

Enjoy the Silence with Faster, Less Frequent Charging

Quick charging has arrived. Each GLi-24-100 can sustain 100A charge and discharge rates without breaking a sweat. Since Genasun lithium has no float or absorption stage, you can charge the battery bank full speed right to the end. This reduces genset run time, increases fuel efficiency (up to 96% in real-world testing), and reduces carbon buildup in diesels by avoiding light loading. More importantly, you get to turn the generator off sooner, and keep it off longer. Leave the noise in the city.

Designed to Win, Engineered to Last.

Engineering the world's most efficient Lithium Iron Phosphate battery system is a good start. Using advanced computer modeling to construct the highest energy-to-weight ratio battery is a nice bonus. But it's the six years of marine lithium experience and flawless performance in the world's most extreme applications that set Genasun batteries apart from the pack of followers. This legendary reliability drove team Telefonica to select Genasun batteries for their entrance to the round-the-world Volvo ocean race. When facing conditions like this, the last thing you want to worry about is your batteries.

Refined by Experience

Genasun Lithium Ion batteries have been sailing the oceans since 2006. They've stood the test of time, providing power through snow storms, hail storms, rough seas, in all climates, through adverse racing conditions. Every year, we make them better. With the longest marine lithium experience, here's what we've learned:

Burn-in Testing for Every Pack

Every Genasun battery is cycle tested on our custom-built battery dynamometer. We run the batteries hard, cycling through charge and discharge while monitoring the characteristics of each cell. Our proprietary predictive models identify trouble cells that are likely to fail years later. These under-performers are weeded out. When a pack has proven its reliability, it's ready to ship. Our testing ensures that your battery pack will provide years of trouble-free service in the most rigorous applications.

Care for Each Cell: The Battery Management System

Genasun's built-in Battery Management System (BMS) monitors each cell, ensuring pack balance and health. This care maximizes both the capacity and the lifetime.

Dual Bank Redundancy: Two is Better than One

A single bank of Genasun batteries has more safety features than any other marine battery system. The only way to make that better is to design it like an airplane, and build in redundancy. Like a jet, Genasun battery systems come with dual power banks. If anything goes wrong, the system will instantly isolate the troubled bank, and provided uninterrupted power from the remaining bank. How useful is it? We had a customer punch a hole in his 55' catamaran, waterlogging half of his electronics. The Genasun system automatically isolated that bank, and continued to power his boat off the remaining bank until he made port in South Africa. With a single bank, he would have been dead in the water. Disaster averted.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

The Bottom Line

There are cheaper ways to make a lithium battery pack. You don't need all the safety features and redundancy designed into a Genasun pack . . . until you do. And when you get safely back to land, we'll get our favorite phone call. It usually starts with, "Thank you" and ends with, "you might have saved my life."

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

26.6V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

2.8kWh

Nominal Capacity (not affected by charge/discharge rate)

100Ah

Max Charge/Discharge Rate

100A

Recommended Charge Voltage

28.4V

Max Outer Dimensions

586 x 175 x 266mm

Weight

29kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Perfect Harmony

The Lithium Control Pack communicates with each cell in every battery bank to ensure perfect harmony. This highly efficient balancing act maximizes pack life and capacity.

Single Bank Control

Genasun's single bank control pack sets the standard for reliable lithium battery management. The only thing more reliable is the Dual Bank Control pack - designed for mission-critical applications.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

Data Output

The Lithium Control Pack has standard communication outputs that enable integration with other systems. Once such deployment tied into a custom iPhone app. This lets the IT manager peak under the hood from anywhere in the world.

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

26.6V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

2.8kWh

Nominal Capacity (not affected by charge/discharge rate)

100Ah

Max Charge/Discharge Rate

100A

Recommended Charge Voltage

28.4V

Max Outer Dimensions

586 x 175 x 266mm

Weight

29kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Genasun offers a high end Alternator Regulator for those needing more robust regulation. With custom AR Field limits and High Accuracy or High Bandwidth options, the Genasun AR-2 is the leading lithium and lead acid regulator. For custom voltages, please email custom@genasun.com so the appropriate voltage can be added before the order is placed.

The AR-2 solar charge controllers carry a 5-year warranty on materials and workmanship. Genasun’s warranty does not cover damage due to abuse or operation beyond the rated specifications.

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

26.6V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

2.8kWh

Nominal Capacity (not affected by charge/discharge rate)

100Ah

Max Charge/Discharge Rate

100A

Recommended Charge Voltage

28.4V

Max Outer Dimensions

586 x 175 x 266mm

Weight

29kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.

Perfect Harmony

The Lithium Control Pack communicates with each cell in every battery bank to ensure perfect harmony. This highly efficient balancing act maximizes pack life and capacity.

Dual Bank Redundancy

Genasun systems are often deployed in high-uptime, mission-critical applications. The GLi-CP-2 Lithium Control Pack allows two packs to be linked in a dual redundant parallel configuration. Often used in marine and telecom applications, the GLi-CP-2 is able to isolate individual banks in case of damage. The remaining bank provides uninterrupted power during these disturbances.

Dual Bank Redundancy: Two is Better than One

A single bank of Genasun batteries has more safety features than any other marine battery system. The only way to make that better is to design it like an airplane, and build in redundancy. Like a jet, Genasun battery systems come with dual power banks. If anything goes wrong, the system will instantly isolate the troubled bank, and provided uninterrupted power from the remaining bank. How useful is it? We had a customer punch a hole in his 55' catamaran, waterlogging half of his electronics. The Genasun system automatically isolated that bank, and continued to power his boat off the remaining bank until he made port in South Africa. With a single bank, he would have been dead in the water. Disaster averted.

Alternator Regulation: Control and Monitoring

Over the years, we've noticed that alternator regulators are prone to failure. To combat this, the Genasun BMS monitors and controls the field current of an external alternator regulator. How useful is this? One of our customer's alternator regulators failed with full field on. This would have fried a standard battery, or blown his electronics when the battery disconnected to preserve itself. Yeah, that will ruin your day. Instead, our BMS took control of the field current, maintained full operation of his boat, and allowed him to safely return to port. Disaster averted.

Dual Positive Bus: The Highest Level of Safety

Every Lithium BMS has a relay to disconnect the pack to prevent of over-charge or over-discharge. This ensures safety, and protects the pack from damage. Genasun's Dual Positive Bus is designed with two relays to separate chargers and loads. Is it worth the additional parts cost? With one relay, if the battery were to disconnect due to a malfunctioning charger, chargers and loads would be connected directly together, without the stability of a battery. Results could range from unstable operation to system-wide damage due to the potential for a load-dump voltage spike. With two relays, the Genasun pack can disconnect the failed charge source, run all your electronics, prevent over-voltage, and reconnect the charge source appropriate. Your power is maintained. On the other hand, if you're sailing into port at night and drain your battery too low, the separate load bus will disconnect, while leaving the charge bus connected. The reserve capacity in the bank will keep the emergency lights on while you find the genset switch. Alternatively, with one relay, you could hunt around in the dark.

Fail-Safe Non-Latching Relays

The relay is your last line of defense. It disconnects power to protect your pack from an over-charge or over-discharge event. Some competing Li packs are made with latching relays. Once the relay closes, it stays closed until you send power again to turn it off. What happens if the signal line corrodes, fails, or is interrupted? You've lost your last line of defense. Genasun packs are exclusively made with non-latching relays that require a constant signal from the battery to stay connected. If something fails, they instantly turn off, saving your pack and potentially more.

Data Output

The Lithium Control Pack has standard communication outputs that enable integration with other systems. Once such deployment tied into a custom iPhone app. This lets the IT manager peak under the hood from anywhere in the world.

Highest Energy to Weight Ratio: 103 Wh/kg

We obsess over performance. Genasun batteries provide more power with less weight than other LFP batteries. The entire pack was computer modeled through Finite Element Analysis (FEA) to optimize the mechanical design and trim any unnecessary material. At 103 Wh/kg for our GLi-12-360 and GLi-24-180, these batteries pack a lot of punch in a small package.

Hard-Anodized Marine Aluminum

The backbone of a Genasun Marine battery is a CNC machined marine aluminum exoskeleton. Marine aluminum is specially formulated to withstand the corrosive marine environment. We then hard-anodize it for an extra barrier of protection. The process is expensive, but the resulting structure greatly outlasts stamped, powder-coated steel used in other battery packs.

Nominal Battery Voltage

26.6V

Cycles (80% DOD)

>2000

Cycles (70% DOD)

>3000

Typical Battery Energy

2.8kWh

Nominal Capacity (not affected by charge/discharge rate)

100Ah

Max Charge/Discharge Rate

100A

Recommended Charge Voltage

28.4V

Max Outer Dimensions

586 x 175 x 266mm

Weight

29kg

Parallel Configuration

Unlimited

Temperature range (charge)

0-45C

Temperature range (discharge)

0-55C

Temperature range (storage)

-20-45C

Self discharge (at 20C)

<3% / Month

Warranty

3 years

Hybrid Power Systems

Real world testing has shown 60% reduction in fuel burn when running a Genasun Hybrid Diesel system over a standard diesel generator set. The system can range from 1.2kWh up to the 50kWh system in this 90 foot Gunboat. Capable of a continuous 1,800A discharge rate, this lithium battery system powers the luxurious yacht for days on end. The system automatically recharged from integrated solar panels, the main engines, or from the diesel gensets.

48V Telecom Power

The 48V Telecom Power systems can be charged by generators and optional solar input. Scalable and efficient, these systems can be built with redundant banks for increased up-time.